Can you post the Scripture where God said that His everlasting covenant with Israel is conditional upon their behavior?
While there’s nothing in Scripture to say that His covenant is anything but everlasting, that’s not the same as to say that Israel is acting in righteousness.
I suspect that this is still the second day that is mentioned in the Valley of Dry Bones, we’ve not gotten to the Third day yet where Israel has the Spirit breathed back into them.